DP13G M SERIES WITH R-410A SINGLE PACKAGE GAS-ELECTRIC HEATING & COOLING UNIT

Transcription

1 INSTALLATION INSTRUTIONS DP13G M SERIES WITH R-410A SINGLE PAKAGE GAS-ELETRI HEATING & OOLING UNIT Affix this manual and Users Information Manual adjacent to the unit. Index ATTENTION INSTALLING PERSONNEL: Prior to installation, thoroughly familiarize yourself with this Installation Manual. Observe all safety warnings. During installation or repair, caution is to be observed. It is your responsibility to install the product safely and to educate the customer on its safe use. REOGNIZE THIS SYMBOL AS A SAFETY PREAUTION. These installation instructions cover the outdoor installation of self contained package air conditioners and heating units. See the Specification Sheets applicable to your model for information regarding accessories. *NOTE: Please contact your distributor or our website for the applicable Specification Sheets referred to in this manual. This Forced Air entral Unit Design omplies With Requirements Embodied In The American National Standard / National Standard of anada Shown Below. ANSI Z21.47 SA-2.3 entral Furnaces. Replacement Parts... 3 OERING PARTS... 3 Safety Instructions... 3 TO THE INSTALLER... 3 Unit location... 4 ALL INSTALLATIONS:... 4 GROUND LEVEL INSTALLATIONS ONLY:... 4 ROOFTOP INSTALLATIONS ONLY:... 5 ROOF URB INSTALLATIONS ONLY:... 5 General Information... 5 TRANSPORTATION DAMAGE... 6 Rigging Details... 6 Gas Piping... 6 HIGH ALTITUDE DERATE (U.S. INSTALLATIONS ONLY)... 6 PIPING... 7 GAS PIPING HEKS... 7 Propane Gas Installations... 8 TANKS AND PIPING... 8 Electrical Wiring... 8 THERMOSTAT LOATION... 8 UNIT VOLTAGE... 9 HEAT ANTIIPATOR SETTING... 9 irculating Air and Filters AIRFLOW ONVERSION DUTWORK FILTERS Venting FLUE HOOD INSTALLATION ondensate Drain ONDENSATE DRAIN ONNETION Normal Sequence of Operation HEATING OOLING FAN ONLY IOD /13 Our continuing commitment to quality products may mean a change in specifications without notice San Felipe St., Suite 500, Houston, TX

2 Startup, Adjustments, and hecks HEATING STARTUP GAS SUPPLY PRESSURE MEASUREMENT GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT.13 OOLING STARTUP Troubleshooting IGNITION ONTROL ERROR ODES ABNORMAL OPERATION - HEATING ABNORMAL OPERATION - OOLING Maintenance FILTER REPLAEMENT OR LEANING ABINET FINISH MAINTENANE LEAN OUTSIDE OIL (QUALIFIED SERVIER ONLY) ONDENSER, EVAPORATOR, AND INDUED DRAFT MOTORS FLAME SENSOR (QUALIFIED SERVIER ONLY) FLUE PASSAGES (QUALIFIED SERVIER ONLY) LEANING FLUE PASSAGES (QUALIFIED SERVIER ONLY) MAIN BURNER FLAME (QUALIFIED SERVIER ONLY) LEANING BURNERS Accessories and Functional Parts SHEET METAL AESSORIES FUNTIONAL PARTS GENERAL INFORMATION APPENDIX Unit Dimensions Wiring Diagrams Minimum learances Recommended Filter Sizes

3 OERING PARTS REPLAEMENT PARTS When reporting shortages or damages, or ordering repair parts, give the complete unit model and serial numbers as stamped on the unit s nameplate. WARNING THIS PRODUT ONTAINS OR PRODUES A HEMIAL OR HEMIALS WHIH MAY AUSE SERIOUS ILLNESS OR DEATH AND WHIH ARE KNOWN TO THE STATE OF ALIFORNIA TO AUSE ANER, BIRTH DEFETS OR OTHER REPRODUTIVE HARM. Replacement parts for this appliance are available through your contractor or local distributor. For the location of your nearest distributor, consult the white business pages, the yellow page section of the local telephone book or contact: ONSUMER AFFAIRS DAIKIN NORTH AMERIA LL 7401 SEURITY WAY HOUSTON, TEXAS SAFETY INSTRUTIONS TO THE INSTALLER Before installing this unit, please read this manual to familiarize yourself on the specific items which must be adhered to, including maximum external static pressure to unit, air temperature rise, minimum or maximum FM and motor speed connections. Keep this literature in a safe place for future reference. WARNING TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, DO NOT USE THIS UNIT IF ANY PART HAS BEEN UNDER WATER. IMMEDIATELY ALL A QUALIFIED SERVIE TEHNIIAN TO INSPET THE FURNAE AND TO REPLAE ANY PART OF THE ONTROL SYSTEM AND ANY GAS ONTROL HAVING BEEN UNDER WATER. WARNING WARNING SHOULD OVERHEATING OUR OR THE GAS SUPPLY FAIL TO SHUT OFF, TURN OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE FURNAE BEFORE TURNING OFF THE ELETRIAL SUPPLY. TO PREVENT THE RISK OF PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH, DO NOT STORE OMBUSTIE MATERIALS OR USE GASOLINE OR OTHER FLAMMAE LIQUIDS OR VAPORS IN THE VIINITY OF THIS APPLIANE. 3

4 ARBON MONOXIDE POISONING HAZA Special Warning for Installation of Furnaces or Air Handling Units in Enclosed Areas such as Garages, Utility Rooms or Parking Areas arbon monoxide producing devices (such as an automobile, space heater, gas water heater, etc.) should not be operated in enclosed areas such as unventilated garages, utility rooms or parking areas because of the danger of carbon monoxide (O) poisoning resulting from the exhaust emissions. If a furnace or air handler is installed in an enclosed area such as a garage, utility room or parking area and a carbon monoxide producing device is operated therein, there must be adequate, direct outside ventilation. This ventilation is necessary to avoid the danger of O poisoning which can occur if a carbon monoxide producing device continues to operate in the enclosed area. arbon monoxide emissions can be (re)circulated throughout the structure if the furnace or air handler is operating in any mode. fluorine. ommon sources of such compounds include swimming pool chemicals and chlorine bleaches, paint stripper, adhesives, paints, varnishes, sealers, waxes (which are not yet dried) and solvents used during construction and remodeling. Various commercial and industrial processes may also be sources of chlorine/ fluorine compounds. To avoid possible illness or death of the building occupants, do NOT locate outside air intake device (economizer, manual fresh air intake, motorized fresh air intake) too close to an exhaust outlet, gas vent termination, or plumbing vent outlet. For specific distances required, consult local codes. Allow minimum clearances from the enclosure for fire protection, proper operation, and service access (see appendix). These clearances must be permanently maintained. The combustion air inlet and flue outlet hoods on the unit must never be obstructed. If used, do not allow the economizer/manual fresh air damper/ motorized fresh air damper to become blocked by snow or debris. In some climates or locations, it may be necessary to elevate the unit to avoid these problems. When the unit is heating, the temperature of the return air entering the unit must be between 50 F and 100 F. GROUND LEVEL INSTALLATIONS ONLY: When the unit is installed on the ground adjacent to the building, a level concrete (or equal) base is recommended. Prepare a base that is 3 larger than the package unit footprint and a minimum of 3 thick. The base should also be located where no runoff of water from higher ground can collect in the unit. O can cause serious illness including permanent brain damage or death. B UNIT LOATION WARNING TO PREVENT POSSIE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED WHEN INSTALLING THE UNIT. ALL INSTALLATIONS: For proper flame pattern within the heat exchanger and proper condensate drainage, the unit must be mounted level. The flue outlet hood must be at least 12 inches from any opening through which flue gases could enter a building, and at least three feet above any forced air inlet located within ten feet. The economizer/manual fresh air intake/ motorized fresh air intake and combustion air inlet mounted on the unit are not affected by this restriction. To avoid possible corrosion of the heat exchanger, do not locate the unit in an area where the outdoor air (i.e. combustion air for the unit) will be frequently contaminated by compounds containing chlorine or Outside Slab Installation 4

5 ROOFTOP INSTALLATIONS ONLY: NOTE: To ensure proper condensate drainage, unit must be installed in a level position. To avoid possible property damage or personal injury, the roof must have sufficient structural strength to carry the weight of the unit(s) and snow or water loads as required by local codes. onsult a structural engineer to determine the weight capabilities of the roof. Roof urb Installation Rooftop Installation The unit may be installed directly on wood floors or on lass A, lass B, or lass roof covering material. To avoid possible personal injury, a safe, flat surface for service personnel should be provided. ROOF URB INSTALLATIONS ONLY: Sufficient structural support must be determined prior to locating and mounting the curb and package unit. Ductwork must be constructed using industry guidelines. The duct work must be placed into the roof curb before mounting the package unit. urb insulation, cant strips, flashing and general roofing material are furnished by the contractor. GENERAL INFORMATION WARNING TO PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, DUE TO FIRE, EXPLOSIONS, SMOKE, SOOT, ONDENSATION, ELETRI SHOK OR ARBON MONOXIDE, THIS UNIT MUST BE PROPERLY INSTALLED, REPAIRED, OPERATED, AND MAINTAINED. This unit is approved for outdoor installation ONLY. Rated performance is achieved after 72 hours of operation. Rated performance is delivered at the specified airflow. See outdoor unit specification sheet for split system models or product specification sheet for packaged and light commercial models. Specification sheets can be found at for Daikin brand products. Within the website, please select the residential or commercial products menu and then select the submenu for the type of product to be installed, such as air conditioners or heat pumps, to access a list of product pages that each contain links to that model s specification sheet. To assure that your unit operates safely and efficiently, it must be installed, operated, and maintained in accordance with these installation and operating instructions, all local building codes and ordinances, or in their absence, with the latest edition of the National Fuel Gas ode NFPA54/ANSI Z223.1 and National Standard of anada AN/SA B149 Installation odes. 5

6 The heating and cooling capacities of the unit should be greater than or equal to the design heating and cooling loads of the area to be conditioned. The loads should be calculated by an approved method or in accordance with A.S.H.R.A.E. Guide or Manual J - Load alculations published by the Air onditioning ontractors of America. Obtain from: American National Standards Institute 1430 Broadway New York, NY TRANSPORTATION DAMAGE heck the carton upon arrival for external damage. If damage is found, a request for inspection by carrier agent should be made in writing immediately. arefully inspect the unit for damage including damage to the cabinetry. Any bolts or screws which may have loosened in transit must be retightened. In the event of damage, the receiver should: 1. Make notation on delivery receipt of any visible damage to shipment or container. 2. Notify carrier promptly and request an inspection. 3. In case of concealed damage, carrier should be notified as soon as possible-preferably within 5 days. 4. File the claim with the following supporting documents: a. Original Bill of Lading, certified copy, or indemnity bond. b. Original paid freight bill or indemnity in lieu thereof. c. Original invoice or certified copy thereof, showing trade and other discounts or reductions. d. opy of the inspection report issued by carrier representative at the time damage is reported to the carrier. The carrier is responsible for making prompt inspection of damage and for a thorough investigation of each claim. The distributor or manufacturer will not accept claims from dealers for transportation damage. NOTE: When inspecting the unit for transportation damage, remove all packaging materials. Recycle or dispose of the packaging material according to local codes. RIGGING DETAILS WARNING TO PREVENT PROPERTY DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHT POSITION DURING ALL RIGGING AND MOVING OPERATIONS. TO FAILITATE LIFTING AND MOVING WHEN A RANE IS USED, PLAE THE UNIT IN AN ADEQUATE AE SLING. Important: If using bottom discharge with roof curb, ductwork should be attached to the curb prior to installing the unit. Ductwork dimensions are shown in roof curb installation instructions. Refer to the Roof urb Installation Instructions for proper curb installation. urbing must be installed in compliance with the National Roofing ontractors Association Manual. Lower unit carefully onto roof mounting curb. While rigging unit, center of gravity will cause condenser end to be lower than supply air end. Rigging GAS PIPING IMPORTANT NOTE: This unit is factory set to operate on natural gas at the altitudes shown on the rating plate. WARNING TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH WHEN EITHER USING PROPANE GAS ALONE OR AT HIGHER ALTITUDES, OBTAIN AND INSTALL THE PROPER ONVERSION KIT(S). FAILURE TO DO SO AN RESULT IN UNSATISFATORY OPERATION AND/OR EQUIPMENT DAMAGE. HIGH ALTITUDE KITS ARE FOR U.S. INSTALLATIONS ONLY AND ARE NOT APPROVED FOR USE IN ANADA. The rating plate is stamped with the model number, type of gas and gas input rating. Make sure the unit is equipped to operate on the type of gas available. onversion to LP gas is permitted with the use of the factory authorized conversion kit LPT-03. (LPT-03 is compatible with both the White Rodgers and the Honeywell gas valves.) Natural Propane Inlet Gas Pressure Min. 5.0" W.., Max. 10.0" W.. Min. 11.0" W.., Max. 13.0" W.. Inlet Gas Pressure Must Not Exceed the Maximum Value Shown in Table Above. The minimum supply pressure should not vary from that shown in the table above because this could prevent the unit from having dependable ignition. In addition, gas input to the burners must not exceed the rated input shown on the rating plate. Overfiring of the unit could result in premature heat exchanger failure. HIGH ALTITUDE DERATE (U.S. INSTALLATIONS ONLY) IMPORTANT NOTE: The gas/electric units naturally derate with altitude. Do not attempt to increase the firing rate by changing orifices or increasing the manifold pressure. This can cause poor combustion and equipment failure. At all altitudes, the manifold pressure must be within 0.3 inches W.. of that listed on the nameplate for the fuel used. At all altitudes and with either fuel, the air temperature rise must be within the range listed on the unit nameplate. Refer to the Installation Manual provided with the LP kit for conversion from natural gas to propane gas and for altitude adjustments. NOTE: For altitudes above 2,000 feet, refer to High Altitude Kit HA

7 PIPING IMPORTANT NOTE: To avoid possible unsatisfactory operation or equipment damage due to under firing of equipment, do not undersize the natural/propane gas piping from the meter/tank to the unit. When sizing a trunk line, include all appliances on that line that could be operated simultaneously. The rating plate is stamped with the model number, type of gas and gas input rating. Make sure the unit is equipped to operate on the type of gas available. The gas line installation must comply with local codes, or in the absence of local codes, with the latest edition of the National Fuel Gas ode NFPA 54/ANSI Z In the prior two methods above the connector or tubing must be protected from physical and thermal damage. Aluminum alloy tubing and connectors must be coated to protect against external corrosion when in contact with masonry, plaster or insulation or are subject to repeated wettings by liquids (water - not rain water, detergents or sewage) Natural Gas onnection Natural Gas apacity of Pipe in ubic Feet of Gas Per Hour (FH) Length of Nominal Black Pipe Size (inches) Pipe in Feet 1/2 3/ /4 1 1 / Pressure=.50 PSIG or less and Pressure Drop of 0.3" W.. (Based on 0.60 Specific Gravity Gas) BTUH Furnace Input FH = Heating Value of Gas (BTU/ubic Foot) Refer to the Proper Piping Practice drawing for the general layout at the unit. The following rules apply: 1. Use black iron pipe and fittings for the supply piping. The use of a flex connector and/or copper piping is permitted as long as it is in agreement with local codes. 2. Use pipe joint compound on male threads only. Pipe joint compound must be resistant to the action of the fuel used. 3. Use ground joint unions. 4. Install a drip leg to trap dirt and moisture before it can enter the gas valve. The drip leg must be a minimum of three inches long. 5. Use two pipe wrenches when making connection to the gas valve to keep it from turning. 6. Install a manual shut-off valve in a convenient location (within six feet of unit) between the meter and the unit. 7. Tighten all joints securely. 8. The unit must be connected to the building piping by one of the following methods: Rigid metallic pipe and fittings Semirigid metallic tubing and metallic fittings (Aluminum alloy tubing must not be used in exterior locations) Listed gas appliance connectors used in accordance with the terms of their listing that are completely in the same room as the equipment GROMMET Proper Piping Practice DRIP LEG MANUAL SHUT-OFF VALVE GROUND JOINT UNION (INSTALLED AHEAD OF GAS VALVE) NOTE: The unit gas supply entrance is factory sealed with plugs. Keep plugs in place until gas supply is ready to be installed. Once ready, replace the plugs with the supplied grommets and install gas supply line. GAS PIPING HEKS AUTION TO PREVENT PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, THE FOLLOWING INSTRUTIONS MUST BE PERFORMED REGAING GAS ONNETIONS AND PRESSURE TESTING: THE UNIT AND ITS GAS ONNETIONS MUST BE LEAK TESTED BEFORE PLAING IN OPERATION. BEAUSE OF THE DANGER OF EXPLOSION OR FIRE, NEVER USE A MATH OR OPEN FLAME TO TEST FOR LEAKS. NEVER EXEED SPEIFIED PRESSURES FOR TESTING. HIGHER PRESSURE MAY DAMAGE GAS VALVE AND AUSE OVERFIRING WHIH MAY RESULT IN PREMATURE HEAT EXHANGE FAILURE. THIS UNIT AND ITS SHUT-OFF VALVE MUST BE DISONNETED FROM THE GAS SUPPLY DURING ANY PRESSURE TESTING OF THAT SYSTEM AT TEST PRESSURES IN EXESS OF 1/2 PSIG (3.48 KPA). THIS UNIT MUST BE ISOLATED FROM THE GAS SUPPLY SYSTEM BY LOSING ITS MANUAL SHUT-OFF VALVE DURING ANY PRESSURE TESTING OF THE GAS SUPPLY PIPING SYSTEM AT TEST PRESSURES EQUAL TO OR LESS THAN 1/2 PSIG (3.48 KPA). WARNING TO AVOID PROPERTY DAMAGE OR PERSONAL INJURY, BE SURE THERE IS NO OPEN FLAME IN THE VIINITY DURING AIR EEDING. 7

8 There will be air in the gas supply line after testing for leaks on a new installation. Therefore, the air must be bled from the line by loosening the ground joint union until pure gas is expelled. Tighten union and wait for five minutes until all gas has been dissipated in the air. Be certain there is no open flame in the vicinity during air bleeding procedure. The unit is placed in operation by closing the main electrical disconnect switch for the unit. PROPANE GAS INSTALLATIONS WARNING TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE OR EXPLOSION AUSED BY A PROPANE GAS LEAK, INSTALL A GAS DETETING WARNING DEVIE. SINE RUST AN REDUE THE LEVEL OF ODORANT IN PROPANE GAS, A GAS DETETING WARNING DEVIE IS THE ONLY RELIAE WAY TO DETET A PROPANE GAS LEAK. ONTAT A LOAL PROPANE GAS SUPPLIER ABOUT INSTALLING A GAS DETETING WARNING DEVIE. IMPORTANT NOTE: Propane gas conversion kits must be installed to convert units to propane gas. All propane gas equipment must conform to the safety standards of the National Board of Fire Underwriters (See NBFU Manual 58). For satisfactory operation, propane gas supply pressure must be within inches W.. at the manifold with all gas appliances in operation. Maintaining proper gas pressure depends on three main factors: 1. Vaporization rate, which depends on (a) temperature of the liquid, and (b) wetted surface area of the container or containers. 2. Proper pressure regulation. 3. Pressure drop in lines between regulators, and between second stage regulator and the appliance. Pipe size required will depend on length of pipe run and total load of all appliances. TANKS AND PIPING omplete information regarding tank sizing for vaporization, recommended regulator settings and pipe sizing is available from most regulator manufacturers and propane gas suppliers. Since propane gas will quickly dissolve white lead or most standard commercial compounds, special pipe dope must be used. Shellac base compounds resistant to the actions of liquefied petroleum gases such as Gasolac, Stalactic, lyde s or John rane are satisfactory. See below for typical propane gas piping. First Stage Regulator 5 to 15 PSIG (20 PSIG Max.) ontinuous 11" W.. Sizing Between First and Second Stage Regulator Maximum Propane apacities listed are based on 1 PSIG Pressure Drop at 10 PSIG Setting. apacities in 1,000 BTU/HR PIPE OR TUBING LENGTH, FEET TUBING SIZE, O.D., TYPE L 3/8" 1/2" 5/8" 3/4" 7/8" 1/2" 3/4" ,303 2,205 3,394 1,843 3, ,115 1,887 2,904 1,577 3, ,672 2,574 1,398 2, ,515 2,332 1,267 2, ,394 2,146 1,165 2, ,297 1,996 1,084 2, ,217 1,873 1,017 2, ,149 1, , , , , , , , , , To convert to apacities at 15 PSIG Settings -- Multiply by To convert to apacities at 5 PSIG Settings -- Multiply by Sizing Between Single or Second Stage Regulator and Appliance* Maximum Propane apacities Listed are Based on 1/2" W.. Pressure Drop at 11" W.. Setting. apacities in 1,000 BTU/HR NOMINAL PIPE SIZE, SHEDULE 40 PIPE OR NOMINAL PIPE SIZE, TUBING TUBING SIZE, O.D., TYPE L SHEDULE 40 LENGTH, FEET 3/8" 1/2" 5/8" 3/4" 7/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" ,146 2,353 3, ,617 2, ,299 1, ,111 1, , , , , *DATA IN AOANE WITH NFPA PAMPHLET NO. 54 Table 3 - Propane Gas Pipe Sizing WARNING TO PREVENT PROPERTY DAMAGE OR SERIOUS PERSONAL INJURY DUE TO FIRE OR EXPLOSION AUSED BY A PROPANE GAS LEAK, INSTALL A GAS DETETING WARNING DEVIE. IF THE PROPANE GAS UNIT IS INSTALLED IN AN EXAVATED AREA OR A ONFINED SPAE, A WARNING DEVIE IS REQUIRED DUE TO: PROPANE GAS IS HEAVIER THAN AIR AND ANY LEAKING GAS AN SETTLE IN ANY LOW AREAS OR ONFINED SPAES. PROPANE GAS ODORANT MAY FADE, MAKING THE GAS UNDETETAE EXEPT WITH A WARNING DEVIE. 200 PSIG Maximum Second Stage Regulator ELETRIAL WIRING THERMOSTAT LOATION Mount the thermostat approximately five feet above the floor, in an area that has an inside, vibration-free wall and has good air circulation. Typical Propane Gas Piping 8

9 DI L1 L2 L2 L2 L2 Movement of air must not be obstructed by furniture, door, draperies, etc. The thermostat must not be mounted where it will be affected by drafts, hot or cold water pipes or air ducts in walls, radiant heat from fireplace, lamps, the sun, television, etc. onsult the Instruction Sheet packaged with thermostat for mounting instructions. All units have one stage of heating and one stage of mechanical cooling. Units which will have economizers may use thermostats with one or two stages of cooling. The units are designed for operation on 60 hertz current and at voltages as shown on the rating plate. All internal wiring in the unit is complete. It is necessary to bring in the power supply to the contactor as shown on the unit wiring diagram which is supplied with each unit. 24 volt wiring must be connected between the unit control panel and the room thermostat. AUTION TO PREVENT IMPROPER AND DANGEROUS OPERATION DUE TO WIRING ERRORS, LABEL ALL WIRES PRIOR TO DISONNETION WHEN SERVIING ONTROLS. VERIFY PROPER OPERATION AFTER SERVIING. For unit protection, use a time delay fuse or HAR circuit breaker that is in excess of the circuit ampacity, but less than or equal to the maximum overcurrent protection device. DO NOT EXEED THE MAXIMUM OVERURRENT DEVIE SIZE SHOWN ON UNIT DATA PLATE. All line voltage connections must be made through weatherproof fittings. All exterior power supply and ground wiring must be in approved weatherproof conduit. Low voltage wiring from the unit control panel to the thermostat requires coded cable. See below for ground level and rooftop wiring. Note:Junction box location shown is optional and is for illustration purposes only. JUNTION BOX A B K4 K3 OOL L1 UNUSED HEAT Electrical Power Directly To Junction Box MODEL K2 R Y W G LOW VOLTAGE ONNETOR ANSI Z21.20 AUTOMATI IGNITION SYSTEM 24VA 50/60Hz 400mA MAX. R Y W G K FS F1 FUSE 3 AMP MAX P EON 120 BREAK FOR TWO STAGE OMPRESSOR P3 P SPEED-UP T2 22 T1 Low Voltage Wiring Refer to the unit wiring diagram for electrical connections. When installed, the unit must be electrically grounded in accordance with local codes or in the absence of local codes, with the National Electrical ode, ANSI/NFPA No. 70, and/or the SA 22.1 Electrical ode. Ensure low voltage connections are waterproof. WARNING TO AVOID THE RISK OF ELETRIAL SHOK, WIRING TO THE UNIT MUST BE POLARIZED AND GROUNDED. Electrical Power Routed Through Bottom of Unit UNIT VOLTAGE Typical Electrical Wiring Unit Voltage The unit transformer is factory connected for 230V operation. If the unit is to operate on 208V, reconnect the transformer primary lead as shown on the unit wiring diagram. HEAT ANTIIPATOR SETTING The heat anticipator is to be set by measuring the load (amperage) at the R circuit. Follow the instructions provided by the thermostat for more details. AUTION TO AVOID PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, USE ONLY OPPER ONDUTORS. 9

10 From Unit AIRFLOW ONVERSION R W Y G Typical Thermostat and Unit 24 V Wiring Hookup IRULATING AIR AND FILTERS Units can easily be converted from horizontal to downdischarge airflow delivery. In down-discharge or high static installations, the installer should measure the total external static and review the blower performance charts before performing the installation. In some installations it will be necessary to change the blower speed to provide proper air flow. Horizontal Air Flow (Applies to 3 phase models) Single phase models are shipped without horizontal duct covers. If needed, these kits may be ordered through Daikin s Service Parts department. Remove supply and return duct covers which are attached to the unit as shown below. R G W Y Down Discharge Applications ut insulation around bottom openings and remove panels from the bottom of the unit, saving the screws holding the panels in place. NOTE: Single phase models require installation of horizontal duct kit # NGK (medium chassis) and # NGK (large chassis). DUTWORK Duct systems and register sizes must be properly designed for the.f.m. and external static pressure rating of the unit. Ductwork should be designed in accordance with the recommended methods of Air onditioning ontractors of America Manual D (Residential) or Manual Q (ommercial). All ductwork exposed to the outdoors must include a weatherproof barrier and adequate insulation. A duct system should be installed in accordance with Standards of the National Board of Fire Underwriters for the Installation of Air onditioning, Warm Air Heating and Ventilating Systems. Pamphlets No. 90A and 90B. The supply duct from the unit through a wall may be installed without clearance. However, minimum unit clearances as shown in the appendix must be maintained. The supply duct should be provided with an access panel large enough to inspect the air chamber downstream of the heat exchanger. A cover should be tightly attached to prevent air leaks. For duct flange dimensions on the unit refer to the Unit Dimension illustration in the appendix. For down-discharge applications, the ductwork should be attached to the roof curb prior to installing the unit. Ductwork dimensions are shown in the roof curb installation manual. If desired, supply and return duct connections to the unit may be made with flexible connections to reduce possible unit operating sound transmission. FILTERS AUTION TO PREVENT PROPERTY DAMAGE DUE TO FIRE AND LOSS OF EQUIPMENT EFFIIENY OR EQUIPMENT DAMAGE DUE TO DUST AND LINT BUILD UP ON INTERNAL PARTS, NEVER OPERATE UNIT WITHOUT AN AIR FILTER INSTALLED IN THE RETURN AIR SYSTEM. Remove these covers for horizontal duct applications Even though a return air filter is not supplied with this unit, there must be a means of filtering all return air. All units may be externally filtered. Refer to the unit filter size chart in the appendix for filter size information. Filters installed external to the unit should be sized in accordance with their manufacturer recommendations. A throwaway filter must be sized for a maximum face velocity of 300 feet per minute. Filter Installation Important: When installing a filter, the air flow arrows on the filter must point toward the circulator blower. Duct over Installation 10

11 VENTING NOTE: Venting is self-contained. Do not modify or block. FLUE HOOD INSTALLATION Install the exhaust flue hood and combustion air intake hood prior to operation of the unit. To install the flue hood cover, please refer to the installation instructions included in the flue hood assembly box located in the blower compartment. 1. Thermostat calls for heat. The induced draft blower energizes for a 15-second pre-purge. 2. The spark igniter and gas valve energizes for 7 seconds. NOTE: The igniter produces a very intense electrical spark that ignites the gas. 3. The 30-second HEAT FAN ON delay time begins. 4. The unit delivers heat to the conditioned space until the thermostat is satisfied. 5. The gas valve deenergizes. The induced draft blower continues operation for a 29-second post-purge. 6. Ignition control begins timing the HEAT FAN OFF delay. There is an adjustable HEAT FAN OFF delay of approximately 120/135/150 seconds (factory set at 150). After the HEAT FAN OFF delay time has elapsed, the blower will deenergize. This allows any additional heat in the heat exchanger to be transferred to the conditioned space. OOLING 1. Thermostat calls for cooling. The compressor and outdoor fan are energized. 2. Approximately seven seconds later, the indoor fan starts. 3. The unit will deliver cooling to the conditioned space until the thermostat is satisfied. 4. The compressor and outdoor fan will be de-energized when the thermostat opens. 5. The indoor fan continues to run for approximately 60 seconds after the thermostat is satisfied. This allows additional cooling from the indoor coil to be transferred to the conditioned space. Then, the indoor fan stops. ONDENSATE DRAIN ONNETION Flue Hood and Bug Screen Installation ONDENSATE DRAIN A 3/4 NPT drain connection is supplied for condensate piping. An external trap must be installed for proper condensate drainage. NOTE: Maximum torque is 10 in-lbs. UNIT FLEXIE TUBING-HOSE OR PIPE DRAIN ONNETION A POSITIVE LIQUID SEAL IS REQUIRED 2" MINIMUM Drain onnection 3" MINIMUM NORMAL SEQUENE OF OPERATION HEATING This unit is equipped with an ignition control that automatically lights the main burner. DO NOT attempt to light the main burners by any other method. NOTE: A 180-second anti-short cycle is integral to the control and prevents recycling of the compressor. FAN ONLY 1. Thermostat calls for FAN ONLY by energizing G. 2. Approximately seven seconds later, the indoor fan starts. 3. The indoor fan continues to run for approximately 60 seconds after G is de-energized. STARTUP, ADJUSTMENTS, AND HEKS HEATING STARTUP This unit is equipped with an electronic ignition device to automatically light the main burners. It also has a power vent blower to exhaust combustion products. On new installations, or if a major component has been replaced, the operation of the unit must be checked. heck unit operation as outlined in the following instructions. If any sparking, odors, or unusual sounds are encountered, shut off electrical power and recheck for wiring errors, or obstructions in or near the blower motors. Duct covers must be removed before operating unit. Heat Anticipator Setting Set the heat anticipator on the room thermostat to 0.4 amps to obtain the proper number of heating cycles per hour and to prevent the room temperature from overshooting the room thermostat setting. 11

12 Rollout Protection ontrol The rollout protection device opens, cutting power to the gas valve, if the flames from the burners are not properly drawn into the heat exchanger. The rollout protection device is located on the burner bracket. The reason for elevated temperatures at the control should be determined and repaired prior to resetting this manual reset control. WARNING TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE OR EXPLOSION, A QUALIFIED SERVIER MUST INVESTIGATE THE REASON FOR THE ROLLOUT PROTETION DEVIE TO OPEN BEFORE MANUALLY RESETTING THE ROLLOUT PROTETION DEVIE. Rollout Protection 4. Remove the heat exchanger door on the side of the unit by removing screws. 5. This unit is equipped with an ignition device which automatically lights the main burner. DO NOT try to light burner by any other method. 6. Move the gas control valve switch to the OFF position. Do not force. 7. Wait five minutes to clear out any gas. 8. Smell for gas, including near the ground. This is important because some types of gas are heavier than air. If you have waited five minutes and you do smell gas, immediately follow the warnings on page 3 of this manual. If having waited for five minutes and no gas smell is noted, move the gas control valve switch to the ON position. 9. Replace the heat exchanger door on the side of the unit. 10. Open the manual gas valve external to the unit. 11. Turn on the electrical power supply to the unit. 12. Set the thermostat to desired setting. INLET OUTLET Rollout Protection on Burner Bracket Secondary Limit ontrol The secondary limit control is located on the top of the blower scroll assembly. This control opens when elevated temperatures are sensed. Elevated temperatures at the control are normally caused by blower failure. The reason for the opening should be determined and repaired prior to resetting. If the power to the unit is interrupted during the heating cycle, it may cause the secondary limit to trip. Once the blower compartment temperature drops below the limit reset temperature, the limit will automatically reset. Inlet Pressure Tap Gas Valve On/Off Selector Switch White-Rodgers 36G22 Pressure Regulator (under cap screw) Outlet Pressure Tap Secondary ontrol Limit Gas Valve On/Off Selector Switch Honeywell Model VR8215 (Single-Stage) Gas Supply And Manifold heck Gas supply pressure and manifold pressure with the burners operating must be as specified on the rating plate. Back of Unit GAS SUPPLY PRESSURE MEASUREMENT Secondary Limit ontrol Pre-Operation hecks 1. lose the manual gas valve external to the unit. 2. Turn off the electrical power supply to the unit. 3. Set the room thermostat to its lowest possible setting. AUTION TO PREVENT UNRELIAE OPERATION OR EQUIPMENT DAMAGE, THE INLET GAS SUPPLY PRESSURE MUST BE AS SPEIFIED ON THE UNIT RATING PLATE WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANES OPERATING. 12

13 The line pressure supplied to the gas valve must be within the range specified in the INLET GAS SUPPLY PRESSURE chart. The supply pressure can be measured at the gas valve inlet pressure tap or at a hose fitting installed in the gas piping drip leg. The supply pressure must be measured with the unit OFF. To measure inlet pressure, use the following procedure. OUTLET Pressure Regulator Adjustment (Under ap Screw) Inlet Pressure Tap Gas Valve On/Off Selector Switch Outlet Pressure Tap White-Rodgers Model 36G22 Inlet Pressure Tap INLET Pressure Regulator (under cap screw) Outlet Pressure Tap 5. Turn ON the gas supply. 6. Turn On power and close thermostat R and W contacts to provide a call for heat. 7. Using a leak detection solution or soap suds, check for leaks at inlet pressure boss plug (Honeywell valve) or screw (White-Rodgers valve). Bubbles forming indicate a leak. SHUT OFF GAS AND REPAIR ALL LEAKS IMMEDIATELY! 8. Measure the gas supply pressure with burners firing. Adjust supply pressure using the Inlet Gas Supply Pressure table shown below. If supply pressure reading differs from the table, make necessary adjustments to pressure regulator, gas piping size, etc., and/or consult with local gas utility. INLET GAS SUPPLY PRESSURE Natural Gas Minimum: 5.0" W.. Maximum: 10.0" W.. Propane Gas Minimum: 11.0" W.. Maximum: 13.0" W.. 9. Turn OFF all electrical power and gas supply to the system. 10. Remove the manometer hose from the hose barb fitting or inlet pressure boss. 11. Replace inlet pressure tap: a. Honeywell VR8215 valve: Remove the 1/8 NPT hose barb fitting from the inlet pressure tap. Replace the inlet pressure boss plug and seal with a high quality thread sealer. b. White-Rodgers 36G22 valve: Turn inlet pressure test screw in to seal pressure port (clockwise, 7 in-lb minimum). 12. Retest for leaks. If bubbles form, SHUT DOWN GAS AND REPAIR LEAKS IMMEDIATELY. 13. Turn ON electrical power and gas supply to the system. 14. Turn valve switch ON. GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT AUTION Gas Valve On/Off Selector Switch TO PREVENT UNRELIAE OPERATION OR EQUIPMENT DAMAGE, THE INLET GAS SUPPLY PRESSURE MUST BE AS SPEIFIED ON THE UNIT RATING PLATE WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANES OPERATING. Honeywell Model VR8215 (Single-Stage) 1. Turn OFF gas to furnace at the manual gas shutoff valve external to the furnace. 2. Turn OFF all electrical power to the system. 3. Inlet pressure tap connections: a. Honeywell VR8215 Valve: Remove the inlet pressure boss plug. Install an 1/8 NPT hose barb fitting into the outlet pressure tap. b. White-Rodgers 36G22 valve: Back inlet pressure test screw (inlet pressure boss) out one turn (counterclockwise, not more than one turn). 4. Attach a hose and manometer to the outlet pressure barb fitting (Honeywell valve) or inlet pressure boss (White- Rodgers valve). This valve is shipped from the factory with the regulator preset (see control label). onsult the appliance rating plate to ensure burner manifold pressure is as specified. If another outlet pressure is required, follow these steps. 1. Turn OFF gas to furnace at the manual gas shutoff valve external to the furnace. 13

14 2. Turn OFF all electrical power to the system. 3. Outlet pressure tap connections: a. Honeywell VR8215 valve: Remove the outlet pressure boss plug. Install an 1/8 NPT hose barb fitting into the outlet pressure tap. b. White-Rodgers 36G22 valve: Back outlet pressure test screw (outlet pressure boss) out one turn (counterclockwise, not more than one turn). 4. Attach a hose and manometer to the outlet pressure barb fitting (Honeywell valve) or outlet pressure boss (White- Rodgers valve). 5. Turn ON the gas supply. 6. Turn ON power and close thermostat R and W contacts to provide a call for heat. 7. Using a leak detection solution or soap suds, check for leaks at outlet pressure boss plug (Honeywell valve) or screw (White-Rodgers valve). Bubbles forming indicate a leak. SHUT OFF GAS AND REPAIR ALL LEAKS IMMEDIATELY! 8. Measure the gas manifold pressure with burners firing. Adjust manifold pressure using the Manifold Gas Pressure table shown below. MANIFOLD GAS SUPPLY PRESSURE Natural Gas 3.5" W.. Propane Gas 10.0" W.. 9. Remove regulator cover screw from the outlet pressure regulator and turn screw clockwise to increase pressure or counterclockwise to decrease pressure. Replace regulator cover screw. 10. Turn OFF all electrical power and gas supply to the system. 11. Remove the manometer hose from the hose barb fitting or outlet pressure boss. 12. Replace outlet pressure tap: a. Honeywell VR8215 valve: Remove the 1/8 NPT hose barb fitting from the outlet pressure tap. Replace the outlet pressure boss plug and seal with a high quality thread sealer. b. White-Rodgers 36G22 valve: Turn outlet pressure test screw in to seal pressure port (clockwise, 7 in-lb minimum). 13. Turn ON electrical power and gas supply to the system. 14. lose thermostat contacts to provide a call for heat. 15. Retest for leaks. If bubbles form, SHUT OFF GAS AND REPAIR ALL LEAKS IMMEDIATELY! Example: Natural gas with a heating value of 1000 BTU per cubic foot and 34 seconds per cubic foot as determined by Step 2, then: Input = 1000 x 3600 / 34 = 106,000 BTU per Hour. NOTE: BTU content of the gas should be obtained from the gas supplier. This measured input must not be greater than shown on the unit rating plate. 4. Relight all other appliances turned off in step 1. Be sure all pilot burners are operating. Main Burner Flame heck Flames should be stable, soft and blue (dust may cause orange tips but they must not be yellow) and extending directly outward from the burner without curling, floating or lifting off. Temperature Rise heck heck the temperature rise through the unit by placing thermometers in supply and return air registers as close to the unit as possible. Thermometers must not be able to sample temperature directly from the unit heat exchangers, or false readings could be obtained. 1. All registers must be open; all duct dampers must be in their final (fully or partially open) position and the unit operated for 15 minutes before taking readings. 2. The temperature rise must be within the range specified on the rating plate. NOTE: Air temperature rise is the temperature difference between supply and return air. With a properly designed system, the proper amount of temperature rise will normally be obtained when the unit is operated at rated input with the recommended blower speed. If the correct amount of temperature rise is not obtained, it may be necessary to change the blower speed. A higher blower speed will lower the temperature rise. A slower blower speed will increase the temperature rise. NOTE: Blower speed MUST be set to give the correct air temperature rise through the unit as marked on the rating plate. External Static Pressure heck The total external static pressure must be checked on this unit to determine if the airflow is proper. Blower Speed Adjustments WARNING TO AVOID PERSONAL INJURY OR DEATH DUE TO ELETRI SHOK, REMOVE ELETRIAL POWER FROM THE UNIT BEFORE HANGING SPEED TAPS ON THE OWER MOTOR. Gas Input (Natural Gas Only) heck To measure the gas input use a gas meter and proceed as follows: 1. Turn off gas supply to all other appliances except the unit. 2. With the unit operating, time the smallest dial on the meter for one complete revolution. If this is a 2 cubic foot dial, divide the seconds by 2; if it is a 1 cubic foot dial, use the seconds as is. This gives the seconds per cubic foot of gas being delivered to the unit. 3. INT=GAS HTG VALUE x 3600 / SE. PER UBI FOOT 14 Refer to the wiring diagram in the appendix to verify speed tap settings. For models equipped with PS type motors, blower speeds are to be changed at the ignition control board. Both heat speed and cool speed terminals are supplied on the board along with two unused motor lead terminals. Some models are equipped with EEM motors. EEM motors are constant torque motors with very low power consumption. This motor is energized by 24V. Adjust the FM for the unit by changing the 24V low voltage leads to the speed terminal block on the motor. Heating-White Lead ooling-yellow Lead T1 - Low Speed T4 - Low Speed T2 - Medium Speed T5 - High Speed T3 - High Speed

15 NOTE: Heating airflow must be adjusted to provide the temperature rise shown on rating plate. Limit heck heck limit control operation after 15 minutes of operation by blocking the return air grille(s). 1. After several minutes the main burners must go OFF. Blower will continue to run. 2. Remove air restrictions and main burners will relight after a cool down period of a few minutes. Adjust the thermostat setting below room temperature. 1. Main burners must go OFF. 2. irculating Air Blower will continue to run for 120, 135 or 150 seconds, depending on the setting. L2 L2 L2 L2 2 3 D1 L1 L1 UNUSED HEAT OOL FS K K1 R10 R8 K3 K4 D3 R38 D9 D10 R A ontrol Board (Top) NOTE: If necessary, adjust fan OFF delay settings to obtain satisfactory comfort level. 20 R34 R35 R42 D12 R11 R4 D14 R36 LED 27 R31 R29 R22 13 D11 Z1 R25 D5 D7 WARNING TO PREVENT PERSONAL INJURY OR DEATH, ALWAYS DISONNET ELETRIAL POWER BEFORE INSPETING OR SERVIING THE UNIT. ALL OMPRESSOR PROTETION DEVIES RESET AUTOMATIALLY, ENERGIZING THE ONTATOR AND OUTDOOR FAN. Refrigerant harge heck After completing airflow measurements and adjustments the unit s refrigerant charge must be checked. The unit comes factory charged, but this charge is based on 325 FM per ton and minimum ESP per AHRI test conditions (generally between ESP). When air quantity or ESP is different than above, the refrigerant charge must be adjusted to the proper amount. All package units with fixed orifice devices are charged using the super heat method at the compressor suction line. After superheat is adjusted it is recommended to check unit sub-cooling at the condenser coil liquid line out. For charge adjustments, see superheat and sub-cooling charts shown for each model. DESIGN SUPERHEAT & F OUTDOOR AMBIENT TEMPERATURE Models # Superheat ± 2 F Subcooling ± 3 F DP13GM24*** DP13GM30*** DP13GM36***41/ DP13GM42*** DP13GM48***41/ DP13GM60***41/ ooling Operation Unit Shutdown 1. Set the thermostat to lowest setting. 2. Turn off the electrical power supply to the unit. 3. Remove the heat exchanger door on the side of the unit by removing screws. 4. Move the gas control valve switch to the OFF position. Do not force. 5. lose manual gas shutoff valve external to the unit. 6. Replace the heat exchanger door on the unit. 7. If cooling and/or air circulation will be desired, turn ON the electrical power. OOLING STARTUP NOTE: heck all manual reset limit controls in heating circuit if cooling mode does not operate. ompressor Protection Devices The compressor includes components which are designed to protect the compressor against abnormal operating conditions. NOTE: Mechanical cooling cannot be reliably provided at ambient temperatures below 50 F. 1. Turn on the electrical power supply to the unit. 2. Place the room thermostat selector switch in the OOL position (or AUTO if available, and if automatic changeover from cooling to heating is desired). 3. Set the room thermostat to the desired temperature. TROUESHOOTING IGNITION ONTROL ERROR ODES The following presents probable causes of questionable unit operation. Refer to Diagnostic Indicator hart for an interpretation of the signal and to this section for an explanation. Remove the control box access panel and note the number of diagnostic LED flashes. Refer to Diagnostic Indicator hart for an interpretation of the signal and to this section for an explanation. 15

16 ABNORMAL OPERATION - HEATING Internal ontrol Failure If the integrated ignition control in this unit encounters an internal fault, it will go into a hard lockout and turn off the diagnostic LED. If diagnostic LED indicates an internal fault, check power supply to unit for proper voltage, check all fuses, circuit breakers and wiring. Disconnect electric power for five seconds. If LED remains off after restoring power, replace control. External Lockout An external lockout occurs if the integrated ignition control determines that a measurable combustion cannot be established within three (3) consecutive ignition attempts. If flame is not established within the seven (7) second trial for ignition, the gas valve is de-energized, 15 second interpurge cycle is completed, and ignition is reattempted. The control will repeat this routine three times if a measurable combustion is not established. The control will then shut off the induced draft blower and go into a lockout state. If flame is established but lost, the control will energize the circulator blower at the heat speed and then begin a new ignition sequence. If flame is established then lost on subsequent attempts, the control will recycle for four (4) consecutive ignition attempts (five attempts total) before locking out. The diagnostic fault code is 1 flash for a lockout due to failed ignition attempts or flame dropouts. The integrated control will automatically reset after one hour, or it can be reset by removing the thermostat signal or disconnecting the electrical power supply for over five seconds. If the diagnostic LED indicates an external lockout, perform the following checks: heck the supply and manifold pressures heck the gas orifices for debris heck gas valve for proper operation heck secondary limit A dirty filter, excessive duct static, insufficient air flow, a faulty limit, or a failed circulator blower can cause this limit to open. heck filters, total external duct static, circulator blower motor, blower motor speed tap (see wiring diagram), and limit. An interruption in electrical power during a heating cycle may also cause the auxiliary limit to open. The automatic reset secondary limit is located on top of the circulator blower assembly. heck rollout limit If the burner flames are not properly drawn into the heat exchanger, the flame rollout protection device will open. Possible causes are restricted or blocked flue passages, blocked or cracked heat exchanger, a failed induced draft blower, or insufficient combustion air. The rollout protection device is a manual reset limit located on the burner bracket. The cause of the flame rollout must be determined and corrected before resetting the limit. heck flame sensor A drop in flame signal can be caused by nearly invisible coating on the sensor. Remove the sensor and carefully clean with steel wool. heck wiring heck wiring for opens/shorts and miswiring. Important: If you have to frequently reset your gas/electric package unit, it means that a problem exists that should be corrected. ontact a qualified servicer for further information. Pressure Switch Stuck Open A pressure switch stuck open can be caused by a faulty pressure switch, faulty wiring, a disconnected or damaged hose, a blocked or restricted flue, or a faulty induced draft blower. If the control senses an open pressure switch during the prepurge cycle, the induced draft blower only will be energized. If the pressure switch opens after ignition has begun the gas valve is de-energized, the circulator blower heat off cycle begins, and the induced draft blower remains on. The diagnostic fault code is two flashes. Pressure Switch Stuck losed A stuck closed pressure switch can be caused by a faulty pressure switch or faulty wiring. If the control encounters a pressure switch stuck closed, the induced draft blower remains off. The diagnostic LED code for this fault is three (3) flashes. Open Thermal Protection Device If the primary limit switch opens, the gas valve is immediately de-energized, the induced draft and air circulating blowers are energized. The induced draft and air circulator blowers remain energized until the limit switch recloses. The diagnostic fault code for an open limit is four (4) flashes. A primary limit will open due to excessive supply air temperatures. This can be caused by a dirty filter, excessive duct static, insufficient air flow, or a faulty limit. heck filters, total external duct static, blower motor, blower motor speed tap (see wiring diagram), and limit. This limit will automatically reset once the temperature falls below a preset level. Flame Detected with Gas Valve losed If flame is detected with the gas valve de-energized, the combustion and air circulator blowers are energized. The diagnostic fault code is five (5) flashes for this condition. The control can be reset by removing the power supply to the unit or it will automatically reset after one hour. Miswiring is the probable cause for this fault. ABNORMAL OPERATION - OOLING Short ycle ompressor Delay The automatic ignition control has a built-in feature that prevents damage to the compressor in short cycling situations. In the event of intermittent power losses or intermittent thermostat operation, the ignition control will delay output to the compressor contactor for three minutes from the time power is restored. (ompressor is off a total of three minutes). The diagnostic LED will flash six (6) times to indicate the compressor contactor output is being delayed. 16